./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/szymanski.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/szymanski.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:21:51,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:21:51,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:21:51,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:21:51,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:21:51,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:21:51,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:21:51,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:21:51,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:21:51,755 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:21:51,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:21:51,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:21:51,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:21:51,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:21:51,758 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:21:51,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:21:51,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:21:51,759 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:21:51,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:21:51,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:21:51,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:21:51,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:21:51,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:21:51,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:21:51,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:21:51,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:21:51,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:21:51,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:21:51,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:21:51,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:21:51,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:21:51,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:21:51,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:21:51,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:21:51,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:21:51,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:21:51,764 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:21:51,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:21:51,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:21:51,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:21:51,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:21:51,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:21:51,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:21:51,765 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:21:51,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:21:52,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:21:52,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:21:52,022 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:21:52,023 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:21:52,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2024-02-07 14:21:53,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:21:53,336 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:21:53,337 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2024-02-07 14:21:53,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19de5d097/5d4d6efb55154cf4b68e37996ccc9d4e/FLAGb58c2f353 [2024-02-07 14:21:53,367 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19de5d097/5d4d6efb55154cf4b68e37996ccc9d4e [2024-02-07 14:21:53,370 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:21:53,371 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:21:53,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/szymanski.yml/witness.yml [2024-02-07 14:21:53,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:21:53,515 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:21:53,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:21:53,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:21:53,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:21:53,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:21:53" (1/2) ... [2024-02-07 14:21:53,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cca5ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:21:53, skipping insertion in model container [2024-02-07 14:21:53,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:21:53" (1/2) ... [2024-02-07 14:21:53,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6628c26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:21:53, skipping insertion in model container [2024-02-07 14:21:53,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:21:53" (2/2) ... [2024-02-07 14:21:53,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cca5ed2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:53, skipping insertion in model container [2024-02-07 14:21:53,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:21:53" (2/2) ... [2024-02-07 14:21:53,524 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:21:53,677 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:21:53,678 INFO L76 edCorrectnessWitness]: Location invariant before [L725-L725] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,679 INFO L76 edCorrectnessWitness]: Location invariant before [L708-L708] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,679 INFO L76 edCorrectnessWitness]: Location invariant before [L719-L719] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,679 INFO L76 edCorrectnessWitness]: Location invariant after [L764-L764] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,679 INFO L76 edCorrectnessWitness]: Location invariant before [L804-L804] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,680 INFO L76 edCorrectnessWitness]: Location invariant before [L768-L768] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,680 INFO L76 edCorrectnessWitness]: Location invariant before [L726-L726] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,680 INFO L76 edCorrectnessWitness]: Location invariant before [L780-L780] flag2 == 2 [2024-02-07 14:21:53,680 INFO L76 edCorrectnessWitness]: Location invariant before [L752-L752] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,680 INFO L76 edCorrectnessWitness]: Location invariant before [L720-L720] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,680 INFO L76 edCorrectnessWitness]: Location invariant before [L738-L738] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant after [L802-L802] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant before [L748-L748] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant before [L792-L792] flag2 == 4 [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant before [L737-L737] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant before [L813-L813] flag2 == 0 [2024-02-07 14:21:53,681 INFO L76 edCorrectnessWitness]: Location invariant before [L798-L798] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,682 INFO L76 edCorrectnessWitness]: Location invariant before [L751-L751] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,682 INFO L76 edCorrectnessWitness]: Location invariant before [L794-L794] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,682 INFO L76 edCorrectnessWitness]: Location invariant before [L773-L773] flag2 == 3 [2024-02-07 14:21:53,682 INFO L76 edCorrectnessWitness]: Location invariant before [L729-L729] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,682 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant after [L707-L707] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant before [L718-L718] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant before [L730-L730] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant before [L764-L764] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant before [L808-L808] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant before [L799-L799] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant after [L745-L745] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:21:53,683 INFO L76 edCorrectnessWitness]: Location invariant before [L707-L707] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L765-L765] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L809-L809] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L716-L716] flag1 == 3 [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L742-L742] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L775-L775] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L762-L762] flag2 == 1 [2024-02-07 14:21:53,684 INFO L76 edCorrectnessWitness]: Location invariant before [L787-L787] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,686 INFO L76 edCorrectnessWitness]: Location invariant before [L786-L786] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,686 INFO L76 edCorrectnessWitness]: Location invariant before [L711-L711] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,686 INFO L76 edCorrectnessWitness]: Location invariant before [L712-L712] (((0 <= f21) && (f21 <= 4)) && (f21 <= 127)) && ((((f21 == 0 || f21 == 1) || f21 == 2) || f21 == 3) || f21 == 4) [2024-02-07 14:21:53,686 INFO L76 edCorrectnessWitness]: Location invariant before [L795-L795] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,686 INFO L76 edCorrectnessWitness]: Location invariant before [L745-L745] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:21:53,687 INFO L76 edCorrectnessWitness]: Location invariant before [L777-L777] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,687 INFO L76 edCorrectnessWitness]: Location invariant before [L735-L735] flag1 == 4 [2024-02-07 14:21:53,687 INFO L76 edCorrectnessWitness]: Location invariant before [L723-L723] flag1 == 2 [2024-02-07 14:21:53,687 INFO L76 edCorrectnessWitness]: Location invariant before [L745-L745] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:21:53,687 INFO L76 edCorrectnessWitness]: Location invariant before [L747-L747] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,687 INFO L76 edCorrectnessWitness]: Location invariant before [L756-L756] flag1 == 0 [2024-02-07 14:21:53,688 INFO L76 edCorrectnessWitness]: Location invariant before [L782-L782] (((0 <= flag1) && (flag1 <= 4)) && (flag1 <= 127)) && ((((flag1 == 0 || flag1 == 1) || flag1 == 2) || flag1 == 3) || flag1 == 4) [2024-02-07 14:21:53,688 INFO L76 edCorrectnessWitness]: Location invariant before [L776-L776] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,688 INFO L76 edCorrectnessWitness]: Location invariant before [L705-L705] flag1 == 1 [2024-02-07 14:21:53,688 INFO L76 edCorrectnessWitness]: Location invariant before [L769-L769] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,688 INFO L76 edCorrectnessWitness]: Location invariant before [L805-L805] (((0 <= f12) && (f12 <= 4)) && (f12 <= 127)) && ((((f12 == 0 || f12 == 1) || f12 == 2) || f12 == 3) || f12 == 4) [2024-02-07 14:21:53,689 INFO L76 edCorrectnessWitness]: Location invariant before [L741-L741] (((0 <= flag2) && (flag2 <= 4)) && (flag2 <= 127)) && ((((flag2 == 0 || flag2 == 1) || flag2 == 2) || flag2 == 3) || flag2 == 4) [2024-02-07 14:21:53,689 INFO L76 edCorrectnessWitness]: Location invariant before [L802-L802] ((0 <= x) && (x <= 1)) && (x == 0 || x == 1) [2024-02-07 14:21:53,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:21:54,030 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] [2024-02-07 14:21:54,040 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] [2024-02-07 14:21:54,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:21:54,055 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 14:21:54,111 WARN L423 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-07 14:21:54,111 WARN L423 MainDispatcher]: Unable to annotate f21 = flag2 with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:21:54,185 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[31505,31518] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:21:54,205 WARN L423 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-07 14:21:54,205 WARN L423 MainDispatcher]: Unable to annotate f12 = flag1 with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:21:54,215 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i[32915,32928] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:21:54,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:21:54,254 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:21:54,254 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54 WrapperNode [2024-02-07 14:21:54,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:21:54,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:21:54,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:21:54,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:21:54,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,279 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,302 INFO L138 Inliner]: procedures = 170, calls = 74, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2024-02-07 14:21:54,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:21:54,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:21:54,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:21:54,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:21:54,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,325 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,337 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-02-07 14:21:54,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:21:54,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:21:54,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:21:54,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:21:54,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (1/1) ... [2024-02-07 14:21:54,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:21:54,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:21:54,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:21:54,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:21:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:21:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:21:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:21:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-02-07 14:21:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-02-07 14:21:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-07 14:21:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-07 14:21:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:21:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:21:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:21:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 14:21:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 14:21:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:21:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:21:54,432 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:21:54,519 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:21:54,521 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:21:54,888 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:21:54,888 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:21:55,042 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:21:55,042 INFO L320 CfgBuilder]: Removed 8 assume(true) statements. [2024-02-07 14:21:55,043 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:21:55 BoogieIcfgContainer [2024-02-07 14:21:55,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:21:55,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:21:55,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:21:55,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:21:55,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:21:53" (1/4) ... [2024-02-07 14:21:55,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1546f53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:21:55, skipping insertion in model container [2024-02-07 14:21:55,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:21:53" (2/4) ... [2024-02-07 14:21:55,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1546f53a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:21:55, skipping insertion in model container [2024-02-07 14:21:55,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:21:54" (3/4) ... [2024-02-07 14:21:55,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1546f53a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:21:55, skipping insertion in model container [2024-02-07 14:21:55,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:21:55" (4/4) ... [2024-02-07 14:21:55,053 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2024-02-07 14:21:55,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:21:55,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2024-02-07 14:21:55,066 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:21:55,157 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-02-07 14:21:55,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 127 transitions, 268 flow [2024-02-07 14:21:55,237 INFO L124 PetriNetUnfolderBase]: 12/125 cut-off events. [2024-02-07 14:21:55,237 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-07 14:21:55,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 125 events. 12/125 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 441 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2024-02-07 14:21:55,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 127 transitions, 268 flow [2024-02-07 14:21:55,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 123 transitions, 255 flow [2024-02-07 14:21:55,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:21:55,268 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7bf37449, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:21:55,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2024-02-07 14:21:55,271 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:21:55,271 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-02-07 14:21:55,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:21:55,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:55,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 14:21:55,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:55,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash 16830997, now seen corresponding path program 1 times [2024-02-07 14:21:55,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:55,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752328834] [2024-02-07 14:21:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:55,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:55,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:55,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752328834] [2024-02-07 14:21:55,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752328834] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:55,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:55,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:21:55,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602168719] [2024-02-07 14:21:55,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:55,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 14:21:55,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:55,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 14:21:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 14:21:55,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:55,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 255 flow. Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:55,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:55,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:55,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:55,977 INFO L124 PetriNetUnfolderBase]: 2332/4486 cut-off events. [2024-02-07 14:21:55,977 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-02-07 14:21:55,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8214 conditions, 4486 events. 2332/4486 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 30170 event pairs, 1816 based on Foata normal form. 88/3328 useless extension candidates. Maximal degree in co-relation 7963. Up to 3650 conditions per place. [2024-02-07 14:21:56,011 INFO L140 encePairwiseOnDemand]: 99/127 looper letters, 63 selfloop transitions, 0 changer transitions 0/95 dead transitions. [2024-02-07 14:21:56,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 95 transitions, 325 flow [2024-02-07 14:21:56,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 14:21:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 14:21:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 159 transitions. [2024-02-07 14:21:56,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6259842519685039 [2024-02-07 14:21:56,022 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 255 flow. Second operand 2 states and 159 transitions. [2024-02-07 14:21:56,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 95 transitions, 325 flow [2024-02-07 14:21:56,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 320 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 14:21:56,032 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 194 flow [2024-02-07 14:21:56,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2024-02-07 14:21:56,037 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -28 predicate places. [2024-02-07 14:21:56,037 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 194 flow [2024-02-07 14:21:56,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:56,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:56,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 14:21:56,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:21:56,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:56,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash 521761603, now seen corresponding path program 1 times [2024-02-07 14:21:56,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:56,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148855543] [2024-02-07 14:21:56,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:56,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:56,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148855543] [2024-02-07 14:21:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148855543] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:56,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:56,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:21:56,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848882482] [2024-02-07 14:21:56,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:56,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:56,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:56,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:56,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:56,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:56,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:56,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:56,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:56,517 INFO L124 PetriNetUnfolderBase]: 2227/4175 cut-off events. [2024-02-07 14:21:56,517 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-02-07 14:21:56,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7707 conditions, 4175 events. 2227/4175 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 27102 event pairs, 551 based on Foata normal form. 0/3062 useless extension candidates. Maximal degree in co-relation 7704. Up to 3141 conditions per place. [2024-02-07 14:21:56,537 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 82 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-02-07 14:21:56,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 117 transitions, 409 flow [2024-02-07 14:21:56,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 14:21:56,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 14:21:56,539 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 194 flow. Second operand 3 states and 196 transitions. [2024-02-07 14:21:56,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 117 transitions, 409 flow [2024-02-07 14:21:56,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 409 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 14:21:56,579 INFO L231 Difference]: Finished difference. Result has 93 places, 95 transitions, 221 flow [2024-02-07 14:21:56,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=93, PETRI_TRANSITIONS=95} [2024-02-07 14:21:56,580 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -25 predicate places. [2024-02-07 14:21:56,580 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 95 transitions, 221 flow [2024-02-07 14:21:56,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:56,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:56,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:56,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:21:56,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:56,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:56,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1165818783, now seen corresponding path program 1 times [2024-02-07 14:21:56,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:56,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151737335] [2024-02-07 14:21:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:56,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:56,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:56,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151737335] [2024-02-07 14:21:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151737335] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:56,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:56,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:21:56,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066895037] [2024-02-07 14:21:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:56,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:56,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:56,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 95 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:56,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:56,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:56,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:56,982 INFO L124 PetriNetUnfolderBase]: 2184/4268 cut-off events. [2024-02-07 14:21:56,983 INFO L125 PetriNetUnfolderBase]: For 436/436 co-relation queries the response was YES. [2024-02-07 14:21:56,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8276 conditions, 4268 events. 2184/4268 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 28997 event pairs, 871 based on Foata normal form. 0/3552 useless extension candidates. Maximal degree in co-relation 8271. Up to 3080 conditions per place. [2024-02-07 14:21:57,000 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 82 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-02-07 14:21:57,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 443 flow [2024-02-07 14:21:57,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 14:21:57,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 14:21:57,002 INFO L175 Difference]: Start difference. First operand has 93 places, 95 transitions, 221 flow. Second operand 3 states and 196 transitions. [2024-02-07 14:21:57,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 117 transitions, 443 flow [2024-02-07 14:21:57,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 117 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:21:57,008 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 242 flow [2024-02-07 14:21:57,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-02-07 14:21:57,009 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -24 predicate places. [2024-02-07 14:21:57,009 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 242 flow [2024-02-07 14:21:57,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:57,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:57,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:21:57,010 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:57,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1010824461, now seen corresponding path program 1 times [2024-02-07 14:21:57,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:57,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924500885] [2024-02-07 14:21:57,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:57,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:57,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:57,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924500885] [2024-02-07 14:21:57,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924500885] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:57,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:57,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:21:57,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251874640] [2024-02-07 14:21:57,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:57,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:57,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:57,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:57,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:57,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:57,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:57,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:57,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:57,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:57,361 INFO L124 PetriNetUnfolderBase]: 2026/3946 cut-off events. [2024-02-07 14:21:57,361 INFO L125 PetriNetUnfolderBase]: For 789/789 co-relation queries the response was YES. [2024-02-07 14:21:57,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7993 conditions, 3946 events. 2026/3946 cut-off events. For 789/789 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 26417 event pairs, 1282 based on Foata normal form. 90/3686 useless extension candidates. Maximal degree in co-relation 7987. Up to 2744 conditions per place. [2024-02-07 14:21:57,386 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 83 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-02-07 14:21:57,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 117 transitions, 460 flow [2024-02-07 14:21:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 14:21:57,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 14:21:57,388 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 242 flow. Second operand 3 states and 196 transitions. [2024-02-07 14:21:57,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 117 transitions, 460 flow [2024-02-07 14:21:57,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 117 transitions, 454 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:21:57,395 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 260 flow [2024-02-07 14:21:57,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2024-02-07 14:21:57,397 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -23 predicate places. [2024-02-07 14:21:57,397 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 260 flow [2024-02-07 14:21:57,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:57,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:57,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:57,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:21:57,398 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:57,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash 634687897, now seen corresponding path program 1 times [2024-02-07 14:21:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:57,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707138460] [2024-02-07 14:21:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:57,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:57,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707138460] [2024-02-07 14:21:57,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707138460] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:57,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:57,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:21:57,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195085012] [2024-02-07 14:21:57,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:57,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:57,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:57,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:57,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:57,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:57,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:57,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:57,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:57,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:57,755 INFO L124 PetriNetUnfolderBase]: 1887/3639 cut-off events. [2024-02-07 14:21:57,755 INFO L125 PetriNetUnfolderBase]: For 1226/1228 co-relation queries the response was YES. [2024-02-07 14:21:57,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7645 conditions, 3639 events. 1887/3639 cut-off events. For 1226/1228 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 23835 event pairs, 1209 based on Foata normal form. 84/3419 useless extension candidates. Maximal degree in co-relation 7638. Up to 2553 conditions per place. [2024-02-07 14:21:57,766 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 83 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-02-07 14:21:57,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 483 flow [2024-02-07 14:21:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 14:21:57,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 14:21:57,768 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 260 flow. Second operand 3 states and 196 transitions. [2024-02-07 14:21:57,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 483 flow [2024-02-07 14:21:57,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:21:57,773 INFO L231 Difference]: Finished difference. Result has 96 places, 95 transitions, 280 flow [2024-02-07 14:21:57,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=96, PETRI_TRANSITIONS=95} [2024-02-07 14:21:57,774 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -22 predicate places. [2024-02-07 14:21:57,774 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 95 transitions, 280 flow [2024-02-07 14:21:57,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:57,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:57,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:57,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 14:21:57,775 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:57,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:57,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1142950922, now seen corresponding path program 1 times [2024-02-07 14:21:57,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:57,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269539549] [2024-02-07 14:21:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:57,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:57,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:57,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269539549] [2024-02-07 14:21:57,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269539549] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:57,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:57,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:21:57,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803213908] [2024-02-07 14:21:57,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:57,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:21:57,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:21:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:21:57,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 127 [2024-02-07 14:21:57,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:57,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:57,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 127 [2024-02-07 14:21:57,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:58,370 INFO L124 PetriNetUnfolderBase]: 3144/6252 cut-off events. [2024-02-07 14:21:58,370 INFO L125 PetriNetUnfolderBase]: For 2473/2477 co-relation queries the response was YES. [2024-02-07 14:21:58,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13428 conditions, 6252 events. 3144/6252 cut-off events. For 2473/2477 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 46614 event pairs, 953 based on Foata normal form. 108/5696 useless extension candidates. Maximal degree in co-relation 13420. Up to 3257 conditions per place. [2024-02-07 14:21:58,397 INFO L140 encePairwiseOnDemand]: 109/127 looper letters, 129 selfloop transitions, 13 changer transitions 13/182 dead transitions. [2024-02-07 14:21:58,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 182 transitions, 833 flow [2024-02-07 14:21:58,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:21:58,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:21:58,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 311 transitions. [2024-02-07 14:21:58,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48976377952755906 [2024-02-07 14:21:58,399 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 280 flow. Second operand 5 states and 311 transitions. [2024-02-07 14:21:58,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 182 transitions, 833 flow [2024-02-07 14:21:58,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 182 transitions, 825 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:21:58,409 INFO L231 Difference]: Finished difference. Result has 101 places, 105 transitions, 391 flow [2024-02-07 14:21:58,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=391, PETRI_PLACES=101, PETRI_TRANSITIONS=105} [2024-02-07 14:21:58,409 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -17 predicate places. [2024-02-07 14:21:58,410 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 105 transitions, 391 flow [2024-02-07 14:21:58,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:58,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:58,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:58,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 14:21:58,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:58,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:58,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1794136, now seen corresponding path program 1 times [2024-02-07 14:21:58,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:58,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395279614] [2024-02-07 14:21:58,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:58,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:58,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:58,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395279614] [2024-02-07 14:21:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395279614] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:21:58,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285988634] [2024-02-07 14:21:58,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:58,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:58,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:58,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:58,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 127 [2024-02-07 14:21:58,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 105 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:58,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:58,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 127 [2024-02-07 14:21:58,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:58,852 INFO L124 PetriNetUnfolderBase]: 3112/5884 cut-off events. [2024-02-07 14:21:58,852 INFO L125 PetriNetUnfolderBase]: For 3723/3733 co-relation queries the response was YES. [2024-02-07 14:21:58,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14126 conditions, 5884 events. 3112/5884 cut-off events. For 3723/3733 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 41358 event pairs, 706 based on Foata normal form. 0/5530 useless extension candidates. Maximal degree in co-relation 14115. Up to 4760 conditions per place. [2024-02-07 14:21:58,883 INFO L140 encePairwiseOnDemand]: 125/127 looper letters, 101 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2024-02-07 14:21:58,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 130 transitions, 689 flow [2024-02-07 14:21:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:58,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-02-07 14:21:58,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46981627296587924 [2024-02-07 14:21:58,885 INFO L175 Difference]: Start difference. First operand has 101 places, 105 transitions, 391 flow. Second operand 3 states and 179 transitions. [2024-02-07 14:21:58,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 130 transitions, 689 flow [2024-02-07 14:21:58,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 130 transitions, 685 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-02-07 14:21:58,896 INFO L231 Difference]: Finished difference. Result has 102 places, 104 transitions, 389 flow [2024-02-07 14:21:58,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=102, PETRI_TRANSITIONS=104} [2024-02-07 14:21:58,898 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -16 predicate places. [2024-02-07 14:21:58,898 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 104 transitions, 389 flow [2024-02-07 14:21:58,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:58,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:58,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:58,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 14:21:58,899 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:58,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:58,899 INFO L85 PathProgramCache]: Analyzing trace with hash 208694278, now seen corresponding path program 1 times [2024-02-07 14:21:58,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:58,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687848820] [2024-02-07 14:21:58,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:58,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:58,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:58,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687848820] [2024-02-07 14:21:58,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687848820] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:58,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:21:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724640856] [2024-02-07 14:21:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:58,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:58,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:58,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:58,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:58,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:58,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:59,328 INFO L124 PetriNetUnfolderBase]: 2626/5302 cut-off events. [2024-02-07 14:21:59,328 INFO L125 PetriNetUnfolderBase]: For 3364/3394 co-relation queries the response was YES. [2024-02-07 14:21:59,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12361 conditions, 5302 events. 2626/5302 cut-off events. For 3364/3394 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 39027 event pairs, 1651 based on Foata normal form. 112/4920 useless extension candidates. Maximal degree in co-relation 12349. Up to 3803 conditions per place. [2024-02-07 14:21:59,353 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 94 selfloop transitions, 3 changer transitions 0/128 dead transitions. [2024-02-07 14:21:59,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 128 transitions, 651 flow [2024-02-07 14:21:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:59,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-07 14:21:59,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2024-02-07 14:21:59,355 INFO L175 Difference]: Start difference. First operand has 102 places, 104 transitions, 389 flow. Second operand 3 states and 197 transitions. [2024-02-07 14:21:59,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 128 transitions, 651 flow [2024-02-07 14:21:59,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 128 transitions, 649 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:21:59,364 INFO L231 Difference]: Finished difference. Result has 104 places, 105 transitions, 419 flow [2024-02-07 14:21:59,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=104, PETRI_TRANSITIONS=105} [2024-02-07 14:21:59,366 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -14 predicate places. [2024-02-07 14:21:59,366 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 419 flow [2024-02-07 14:21:59,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:59,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:59,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:59,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 14:21:59,367 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:59,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1566313708, now seen corresponding path program 1 times [2024-02-07 14:21:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305523970] [2024-02-07 14:21:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:59,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305523970] [2024-02-07 14:21:59,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305523970] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:59,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:59,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:21:59,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039115658] [2024-02-07 14:21:59,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:59,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:21:59,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:59,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:21:59,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:21:59,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:21:59,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:59,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:59,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:21:59,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:21:59,796 INFO L124 PetriNetUnfolderBase]: 2554/5198 cut-off events. [2024-02-07 14:21:59,797 INFO L125 PetriNetUnfolderBase]: For 4298/4320 co-relation queries the response was YES. [2024-02-07 14:21:59,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12588 conditions, 5198 events. 2554/5198 cut-off events. For 4298/4320 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 37951 event pairs, 1625 based on Foata normal form. 68/4818 useless extension candidates. Maximal degree in co-relation 12575. Up to 3777 conditions per place. [2024-02-07 14:21:59,826 INFO L140 encePairwiseOnDemand]: 115/127 looper letters, 98 selfloop transitions, 3 changer transitions 0/132 dead transitions. [2024-02-07 14:21:59,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 132 transitions, 724 flow [2024-02-07 14:21:59,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:21:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:21:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-07 14:21:59,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2024-02-07 14:21:59,828 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 419 flow. Second operand 3 states and 197 transitions. [2024-02-07 14:21:59,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 132 transitions, 724 flow [2024-02-07 14:21:59,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 132 transitions, 718 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:21:59,837 INFO L231 Difference]: Finished difference. Result has 106 places, 106 transitions, 447 flow [2024-02-07 14:21:59,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=106, PETRI_TRANSITIONS=106} [2024-02-07 14:21:59,838 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -12 predicate places. [2024-02-07 14:21:59,838 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 106 transitions, 447 flow [2024-02-07 14:21:59,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:59,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:21:59,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:21:59,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-07 14:21:59,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:21:59,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:21:59,840 INFO L85 PathProgramCache]: Analyzing trace with hash -285581468, now seen corresponding path program 1 times [2024-02-07 14:21:59,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:21:59,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897896585] [2024-02-07 14:21:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:21:59,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:21:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:21:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:21:59,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:21:59,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897896585] [2024-02-07 14:21:59,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897896585] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:21:59,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:21:59,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:21:59,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940287314] [2024-02-07 14:21:59,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:21:59,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:21:59,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:21:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:21:59,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:21:59,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 127 [2024-02-07 14:21:59,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 106 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:21:59,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:21:59,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 127 [2024-02-07 14:21:59,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:00,628 INFO L124 PetriNetUnfolderBase]: 3590/7120 cut-off events. [2024-02-07 14:22:00,628 INFO L125 PetriNetUnfolderBase]: For 7388/7410 co-relation queries the response was YES. [2024-02-07 14:22:00,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18257 conditions, 7120 events. 3590/7120 cut-off events. For 7388/7410 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 54218 event pairs, 1696 based on Foata normal form. 220/6796 useless extension candidates. Maximal degree in co-relation 18243. Up to 3784 conditions per place. [2024-02-07 14:22:00,667 INFO L140 encePairwiseOnDemand]: 113/127 looper letters, 145 selfloop transitions, 16 changer transitions 0/187 dead transitions. [2024-02-07 14:22:00,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 187 transitions, 1108 flow [2024-02-07 14:22:00,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:22:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:22:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 301 transitions. [2024-02-07 14:22:00,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47401574803149604 [2024-02-07 14:22:00,669 INFO L175 Difference]: Start difference. First operand has 106 places, 106 transitions, 447 flow. Second operand 5 states and 301 transitions. [2024-02-07 14:22:00,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 187 transitions, 1108 flow [2024-02-07 14:22:00,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 187 transitions, 1096 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-02-07 14:22:00,682 INFO L231 Difference]: Finished difference. Result has 113 places, 119 transitions, 614 flow [2024-02-07 14:22:00,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=614, PETRI_PLACES=113, PETRI_TRANSITIONS=119} [2024-02-07 14:22:00,683 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-02-07 14:22:00,683 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 119 transitions, 614 flow [2024-02-07 14:22:00,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:00,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:00,684 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:00,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-07 14:22:00,684 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:00,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash 58496074, now seen corresponding path program 1 times [2024-02-07 14:22:00,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:00,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873805874] [2024-02-07 14:22:00,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:00,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:00,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:00,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873805874] [2024-02-07 14:22:00,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873805874] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:00,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:00,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:00,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835768477] [2024-02-07 14:22:00,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:00,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:00,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:00,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:00,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:00,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 127 [2024-02-07 14:22:00,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 119 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:00,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:00,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 127 [2024-02-07 14:22:00,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:01,380 INFO L124 PetriNetUnfolderBase]: 4380/8616 cut-off events. [2024-02-07 14:22:01,380 INFO L125 PetriNetUnfolderBase]: For 11316/11334 co-relation queries the response was YES. [2024-02-07 14:22:01,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22974 conditions, 8616 events. 4380/8616 cut-off events. For 11316/11334 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 67601 event pairs, 1804 based on Foata normal form. 386/8844 useless extension candidates. Maximal degree in co-relation 22957. Up to 4205 conditions per place. [2024-02-07 14:22:01,425 INFO L140 encePairwiseOnDemand]: 119/127 looper letters, 131 selfloop transitions, 3 changer transitions 7/167 dead transitions. [2024-02-07 14:22:01,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1165 flow [2024-02-07 14:22:01,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 14:22:01,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 14:22:01,427 INFO L175 Difference]: Start difference. First operand has 113 places, 119 transitions, 614 flow. Second operand 3 states and 196 transitions. [2024-02-07 14:22:01,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1165 flow [2024-02-07 14:22:01,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1161 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-02-07 14:22:01,444 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 588 flow [2024-02-07 14:22:01,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2024-02-07 14:22:01,445 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -1 predicate places. [2024-02-07 14:22:01,445 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 588 flow [2024-02-07 14:22:01,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:01,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:01,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:01,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-02-07 14:22:01,446 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:01,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:01,446 INFO L85 PathProgramCache]: Analyzing trace with hash 508517411, now seen corresponding path program 1 times [2024-02-07 14:22:01,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:01,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33445535] [2024-02-07 14:22:01,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:01,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:01,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:01,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:01,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33445535] [2024-02-07 14:22:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33445535] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:01,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:01,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:22:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164211264] [2024-02-07 14:22:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:01,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:22:01,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:01,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:22:01,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:22:01,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 127 [2024-02-07 14:22:01,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 588 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:01,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:01,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 127 [2024-02-07 14:22:01,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:02,110 INFO L124 PetriNetUnfolderBase]: 3800/7284 cut-off events. [2024-02-07 14:22:02,111 INFO L125 PetriNetUnfolderBase]: For 9896/9978 co-relation queries the response was YES. [2024-02-07 14:22:02,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20370 conditions, 7284 events. 3800/7284 cut-off events. For 9896/9978 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 53027 event pairs, 1174 based on Foata normal form. 174/7294 useless extension candidates. Maximal degree in co-relation 20351. Up to 2250 conditions per place. [2024-02-07 14:22:02,148 INFO L140 encePairwiseOnDemand]: 108/127 looper letters, 164 selfloop transitions, 26 changer transitions 1/221 dead transitions. [2024-02-07 14:22:02,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 221 transitions, 1512 flow [2024-02-07 14:22:02,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:22:02,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:22:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 326 transitions. [2024-02-07 14:22:02,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133858267716536 [2024-02-07 14:22:02,149 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 588 flow. Second operand 5 states and 326 transitions. [2024-02-07 14:22:02,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 221 transitions, 1512 flow [2024-02-07 14:22:02,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 221 transitions, 1502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:22:02,170 INFO L231 Difference]: Finished difference. Result has 123 places, 134 transitions, 779 flow [2024-02-07 14:22:02,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=779, PETRI_PLACES=123, PETRI_TRANSITIONS=134} [2024-02-07 14:22:02,171 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-02-07 14:22:02,171 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 134 transitions, 779 flow [2024-02-07 14:22:02,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:02,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:02,171 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:02,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-02-07 14:22:02,172 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:02,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:02,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1931686367, now seen corresponding path program 2 times [2024-02-07 14:22:02,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:02,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034606380] [2024-02-07 14:22:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:02,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:02,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:02,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034606380] [2024-02-07 14:22:02,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034606380] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:02,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:02,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158645606] [2024-02-07 14:22:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:02,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:02,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 127 [2024-02-07 14:22:02,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 134 transitions, 779 flow. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:02,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:02,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 127 [2024-02-07 14:22:02,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:02,783 INFO L124 PetriNetUnfolderBase]: 3953/7553 cut-off events. [2024-02-07 14:22:02,783 INFO L125 PetriNetUnfolderBase]: For 15343/15433 co-relation queries the response was YES. [2024-02-07 14:22:02,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24486 conditions, 7553 events. 3953/7553 cut-off events. For 15343/15433 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 54859 event pairs, 1372 based on Foata normal form. 70/7471 useless extension candidates. Maximal degree in co-relation 24464. Up to 6373 conditions per place. [2024-02-07 14:22:02,829 INFO L140 encePairwiseOnDemand]: 125/127 looper letters, 124 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-02-07 14:22:02,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 156 transitions, 1135 flow [2024-02-07 14:22:02,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:02,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2024-02-07 14:22:02,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46981627296587924 [2024-02-07 14:22:02,831 INFO L175 Difference]: Start difference. First operand has 123 places, 134 transitions, 779 flow. Second operand 3 states and 179 transitions. [2024-02-07 14:22:02,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 156 transitions, 1135 flow [2024-02-07 14:22:02,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 156 transitions, 1135 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 14:22:02,853 INFO L231 Difference]: Finished difference. Result has 124 places, 133 transitions, 775 flow [2024-02-07 14:22:02,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=775, PETRI_PLACES=124, PETRI_TRANSITIONS=133} [2024-02-07 14:22:02,854 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 6 predicate places. [2024-02-07 14:22:02,854 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 133 transitions, 775 flow [2024-02-07 14:22:02,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:02,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:02,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:02,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-02-07 14:22:02,854 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:02,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:02,855 INFO L85 PathProgramCache]: Analyzing trace with hash -72743910, now seen corresponding path program 1 times [2024-02-07 14:22:02,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:02,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13729277] [2024-02-07 14:22:02,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:02,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:02,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:02,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13729277] [2024-02-07 14:22:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13729277] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601786149] [2024-02-07 14:22:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:02,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:02,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:02,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:02,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:02,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:22:02,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 133 transitions, 775 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:02,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:02,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:22:02,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:03,501 INFO L124 PetriNetUnfolderBase]: 3288/6634 cut-off events. [2024-02-07 14:22:03,501 INFO L125 PetriNetUnfolderBase]: For 13455/13599 co-relation queries the response was YES. [2024-02-07 14:22:03,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20963 conditions, 6634 events. 3288/6634 cut-off events. For 13455/13599 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 48994 event pairs, 1524 based on Foata normal form. 334/6834 useless extension candidates. Maximal degree in co-relation 20940. Up to 3718 conditions per place. [2024-02-07 14:22:03,542 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 122 selfloop transitions, 5 changer transitions 0/160 dead transitions. [2024-02-07 14:22:03,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 160 transitions, 1171 flow [2024-02-07 14:22:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2024-02-07 14:22:03,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144356955380578 [2024-02-07 14:22:03,544 INFO L175 Difference]: Start difference. First operand has 124 places, 133 transitions, 775 flow. Second operand 3 states and 196 transitions. [2024-02-07 14:22:03,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 160 transitions, 1171 flow [2024-02-07 14:22:03,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 160 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:22:03,568 INFO L231 Difference]: Finished difference. Result has 126 places, 132 transitions, 791 flow [2024-02-07 14:22:03,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=126, PETRI_TRANSITIONS=132} [2024-02-07 14:22:03,568 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2024-02-07 14:22:03,569 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 132 transitions, 791 flow [2024-02-07 14:22:03,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:03,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:03,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:03,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-02-07 14:22:03,569 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:03,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash 573404247, now seen corresponding path program 1 times [2024-02-07 14:22:03,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:03,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551658534] [2024-02-07 14:22:03,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:03,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:03,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:03,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551658534] [2024-02-07 14:22:03,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551658534] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:03,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:03,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:03,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872090015] [2024-02-07 14:22:03,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:03,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:03,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:03,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:03,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:03,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:22:03,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 132 transitions, 791 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:03,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:03,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:22:03,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:04,146 INFO L124 PetriNetUnfolderBase]: 2911/5793 cut-off events. [2024-02-07 14:22:04,147 INFO L125 PetriNetUnfolderBase]: For 11559/11679 co-relation queries the response was YES. [2024-02-07 14:22:04,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18060 conditions, 5793 events. 2911/5793 cut-off events. For 11559/11679 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 41253 event pairs, 1637 based on Foata normal form. 176/5809 useless extension candidates. Maximal degree in co-relation 18036. Up to 4099 conditions per place. [2024-02-07 14:22:04,170 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 110 selfloop transitions, 4 changer transitions 1/148 dead transitions. [2024-02-07 14:22:04,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 148 transitions, 1061 flow [2024-02-07 14:22:04,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2024-02-07 14:22:04,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48556430446194226 [2024-02-07 14:22:04,171 INFO L175 Difference]: Start difference. First operand has 126 places, 132 transitions, 791 flow. Second operand 3 states and 185 transitions. [2024-02-07 14:22:04,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 148 transitions, 1061 flow [2024-02-07 14:22:04,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 148 transitions, 1030 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-02-07 14:22:04,194 INFO L231 Difference]: Finished difference. Result has 113 places, 123 transitions, 678 flow [2024-02-07 14:22:04,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=113, PETRI_TRANSITIONS=123} [2024-02-07 14:22:04,195 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -5 predicate places. [2024-02-07 14:22:04,195 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 123 transitions, 678 flow [2024-02-07 14:22:04,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:04,195 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:04,195 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:04,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-02-07 14:22:04,196 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:04,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:04,196 INFO L85 PathProgramCache]: Analyzing trace with hash -115786802, now seen corresponding path program 1 times [2024-02-07 14:22:04,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:04,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064831544] [2024-02-07 14:22:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:04,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:04,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064831544] [2024-02-07 14:22:04,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064831544] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:04,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:04,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:22:04,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505925172] [2024-02-07 14:22:04,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:04,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:22:04,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:22:04,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:22:04,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 127 [2024-02-07 14:22:04,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 123 transitions, 678 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:04,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:04,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 127 [2024-02-07 14:22:04,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:04,896 INFO L124 PetriNetUnfolderBase]: 4146/7978 cut-off events. [2024-02-07 14:22:04,897 INFO L125 PetriNetUnfolderBase]: For 12879/12949 co-relation queries the response was YES. [2024-02-07 14:22:04,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24412 conditions, 7978 events. 4146/7978 cut-off events. For 12879/12949 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 58070 event pairs, 1841 based on Foata normal form. 222/7891 useless extension candidates. Maximal degree in co-relation 24392. Up to 4719 conditions per place. [2024-02-07 14:22:04,935 INFO L140 encePairwiseOnDemand]: 110/127 looper letters, 170 selfloop transitions, 24 changer transitions 2/222 dead transitions. [2024-02-07 14:22:04,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 222 transitions, 1635 flow [2024-02-07 14:22:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:22:04,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:22:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 288 transitions. [2024-02-07 14:22:04,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45354330708661417 [2024-02-07 14:22:04,938 INFO L175 Difference]: Start difference. First operand has 113 places, 123 transitions, 678 flow. Second operand 5 states and 288 transitions. [2024-02-07 14:22:04,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 222 transitions, 1635 flow [2024-02-07 14:22:04,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 222 transitions, 1629 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:22:04,963 INFO L231 Difference]: Finished difference. Result has 120 places, 142 transitions, 929 flow [2024-02-07 14:22:04,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=929, PETRI_PLACES=120, PETRI_TRANSITIONS=142} [2024-02-07 14:22:04,964 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 2 predicate places. [2024-02-07 14:22:04,964 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 142 transitions, 929 flow [2024-02-07 14:22:04,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:04,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:04,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:04,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-02-07 14:22:04,965 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:04,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:04,965 INFO L85 PathProgramCache]: Analyzing trace with hash -454199862, now seen corresponding path program 2 times [2024-02-07 14:22:04,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:04,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436241623] [2024-02-07 14:22:04,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:04,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:05,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436241623] [2024-02-07 14:22:05,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436241623] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:05,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:05,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:05,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650345111] [2024-02-07 14:22:05,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:05,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:05,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:05,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:05,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:05,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:22:05,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 142 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:05,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:05,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:22:05,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:05,556 INFO L124 PetriNetUnfolderBase]: 2997/6207 cut-off events. [2024-02-07 14:22:05,556 INFO L125 PetriNetUnfolderBase]: For 14586/14736 co-relation queries the response was YES. [2024-02-07 14:22:05,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20427 conditions, 6207 events. 2997/6207 cut-off events. For 14586/14736 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 45896 event pairs, 1244 based on Foata normal form. 342/6417 useless extension candidates. Maximal degree in co-relation 20404. Up to 3038 conditions per place. [2024-02-07 14:22:05,589 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 132 selfloop transitions, 3 changer transitions 6/176 dead transitions. [2024-02-07 14:22:05,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 176 transitions, 1424 flow [2024-02-07 14:22:05,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:05,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2024-02-07 14:22:05,591 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49081364829396323 [2024-02-07 14:22:05,591 INFO L175 Difference]: Start difference. First operand has 120 places, 142 transitions, 929 flow. Second operand 3 states and 187 transitions. [2024-02-07 14:22:05,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 176 transitions, 1424 flow [2024-02-07 14:22:05,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 176 transitions, 1410 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-02-07 14:22:05,612 INFO L231 Difference]: Finished difference. Result has 123 places, 137 transitions, 908 flow [2024-02-07 14:22:05,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=123, PETRI_TRANSITIONS=137} [2024-02-07 14:22:05,612 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2024-02-07 14:22:05,613 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 137 transitions, 908 flow [2024-02-07 14:22:05,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:05,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:05,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:05,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-02-07 14:22:05,613 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:05,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:05,614 INFO L85 PathProgramCache]: Analyzing trace with hash -416167605, now seen corresponding path program 1 times [2024-02-07 14:22:05,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:05,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238690438] [2024-02-07 14:22:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:05,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:05,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:05,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238690438] [2024-02-07 14:22:05,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238690438] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:05,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:05,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:22:05,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296006669] [2024-02-07 14:22:05,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:05,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:22:05,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:05,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:22:05,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:22:05,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 127 [2024-02-07 14:22:05,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 137 transitions, 908 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:05,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:05,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 127 [2024-02-07 14:22:05,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:06,341 INFO L124 PetriNetUnfolderBase]: 3394/7108 cut-off events. [2024-02-07 14:22:06,342 INFO L125 PetriNetUnfolderBase]: For 16800/16936 co-relation queries the response was YES. [2024-02-07 14:22:06,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23425 conditions, 7108 events. 3394/7108 cut-off events. For 16800/16936 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 54867 event pairs, 847 based on Foata normal form. 214/7194 useless extension candidates. Maximal degree in co-relation 23400. Up to 3616 conditions per place. [2024-02-07 14:22:06,381 INFO L140 encePairwiseOnDemand]: 110/127 looper letters, 151 selfloop transitions, 21 changer transitions 23/222 dead transitions. [2024-02-07 14:22:06,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 222 transitions, 1846 flow [2024-02-07 14:22:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:22:06,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:22:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 287 transitions. [2024-02-07 14:22:06,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4519685039370079 [2024-02-07 14:22:06,383 INFO L175 Difference]: Start difference. First operand has 123 places, 137 transitions, 908 flow. Second operand 5 states and 287 transitions. [2024-02-07 14:22:06,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 222 transitions, 1846 flow [2024-02-07 14:22:06,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 222 transitions, 1804 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-02-07 14:22:06,410 INFO L231 Difference]: Finished difference. Result has 128 places, 144 transitions, 1057 flow [2024-02-07 14:22:06,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1057, PETRI_PLACES=128, PETRI_TRANSITIONS=144} [2024-02-07 14:22:06,410 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 10 predicate places. [2024-02-07 14:22:06,411 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 144 transitions, 1057 flow [2024-02-07 14:22:06,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:06,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:06,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:06,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-02-07 14:22:06,411 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:06,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:06,412 INFO L85 PathProgramCache]: Analyzing trace with hash 733787727, now seen corresponding path program 2 times [2024-02-07 14:22:06,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:06,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112646107] [2024-02-07 14:22:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:06,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:06,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:06,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:06,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112646107] [2024-02-07 14:22:06,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112646107] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:06,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:06,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:06,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778950722] [2024-02-07 14:22:06,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:06,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:06,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:06,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 127 [2024-02-07 14:22:06,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 144 transitions, 1057 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:06,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:06,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 127 [2024-02-07 14:22:06,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:06,931 INFO L124 PetriNetUnfolderBase]: 2754/6022 cut-off events. [2024-02-07 14:22:06,932 INFO L125 PetriNetUnfolderBase]: For 15129/15213 co-relation queries the response was YES. [2024-02-07 14:22:06,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19835 conditions, 6022 events. 2754/6022 cut-off events. For 15129/15213 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 46442 event pairs, 1679 based on Foata normal form. 112/5992 useless extension candidates. Maximal degree in co-relation 19807. Up to 4173 conditions per place. [2024-02-07 14:22:06,965 INFO L140 encePairwiseOnDemand]: 116/127 looper letters, 127 selfloop transitions, 2 changer transitions 1/163 dead transitions. [2024-02-07 14:22:06,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 163 transitions, 1400 flow [2024-02-07 14:22:06,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:06,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:06,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-02-07 14:22:06,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4671916010498688 [2024-02-07 14:22:06,967 INFO L175 Difference]: Start difference. First operand has 128 places, 144 transitions, 1057 flow. Second operand 3 states and 178 transitions. [2024-02-07 14:22:06,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 163 transitions, 1400 flow [2024-02-07 14:22:06,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 1387 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-02-07 14:22:06,990 INFO L231 Difference]: Finished difference. Result has 118 places, 134 transitions, 952 flow [2024-02-07 14:22:06,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=118, PETRI_TRANSITIONS=134} [2024-02-07 14:22:06,991 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2024-02-07 14:22:06,991 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 134 transitions, 952 flow [2024-02-07 14:22:06,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:06,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:06,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:06,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-02-07 14:22:06,992 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thr2Err18ASSERT_VIOLATIONWITNESS_INVARIANT === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:06,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:06,992 INFO L85 PathProgramCache]: Analyzing trace with hash -454229582, now seen corresponding path program 1 times [2024-02-07 14:22:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:06,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847550376] [2024-02-07 14:22:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:06,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:07,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:07,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:07,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847550376] [2024-02-07 14:22:07,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847550376] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:07,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:07,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:22:07,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531859248] [2024-02-07 14:22:07,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:07,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:22:07,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:07,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:22:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:22:07,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 127 [2024-02-07 14:22:07,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 134 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:07,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:07,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 127 [2024-02-07 14:22:07,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:07,428 INFO L124 PetriNetUnfolderBase]: 2282/4696 cut-off events. [2024-02-07 14:22:07,428 INFO L125 PetriNetUnfolderBase]: For 12099/12193 co-relation queries the response was YES. [2024-02-07 14:22:07,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16355 conditions, 4696 events. 2282/4696 cut-off events. For 12099/12193 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 32599 event pairs, 1159 based on Foata normal form. 286/4934 useless extension candidates. Maximal degree in co-relation 16329. Up to 3263 conditions per place. [2024-02-07 14:22:07,451 INFO L140 encePairwiseOnDemand]: 120/127 looper letters, 100 selfloop transitions, 2 changer transitions 36/165 dead transitions. [2024-02-07 14:22:07,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 165 transitions, 1439 flow [2024-02-07 14:22:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:22:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:22:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-02-07 14:22:07,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42782152230971127 [2024-02-07 14:22:07,453 INFO L175 Difference]: Start difference. First operand has 118 places, 134 transitions, 952 flow. Second operand 3 states and 163 transitions. [2024-02-07 14:22:07,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 165 transitions, 1439 flow [2024-02-07 14:22:07,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 165 transitions, 1407 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-02-07 14:22:07,474 INFO L231 Difference]: Finished difference. Result has 114 places, 112 transitions, 753 flow [2024-02-07 14:22:07,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=114, PETRI_TRANSITIONS=112} [2024-02-07 14:22:07,474 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -4 predicate places. [2024-02-07 14:22:07,474 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 112 transitions, 753 flow [2024-02-07 14:22:07,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:07,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:22:07,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:07,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-02-07 14:22:07,475 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err20ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-02-07 14:22:07,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:22:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash -112056151, now seen corresponding path program 1 times [2024-02-07 14:22:07,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:22:07,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939962353] [2024-02-07 14:22:07,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:22:07,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:22:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:22:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:22:07,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:22:07,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939962353] [2024-02-07 14:22:07,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939962353] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:22:07,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:22:07,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:22:07,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615514217] [2024-02-07 14:22:07,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:22:07,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:22:07,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:22:07,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:22:07,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:22:07,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 127 [2024-02-07 14:22:07,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 112 transitions, 753 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:07,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:22:07,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 127 [2024-02-07 14:22:07,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:22:07,878 INFO L124 PetriNetUnfolderBase]: 1733/3491 cut-off events. [2024-02-07 14:22:07,878 INFO L125 PetriNetUnfolderBase]: For 9815/9867 co-relation queries the response was YES. [2024-02-07 14:22:07,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12636 conditions, 3491 events. 1733/3491 cut-off events. For 9815/9867 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 22900 event pairs, 698 based on Foata normal form. 68/3519 useless extension candidates. Maximal degree in co-relation 12611. Up to 1866 conditions per place. [2024-02-07 14:22:07,891 INFO L140 encePairwiseOnDemand]: 111/127 looper letters, 0 selfloop transitions, 0 changer transitions 181/181 dead transitions. [2024-02-07 14:22:07,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 181 transitions, 1560 flow [2024-02-07 14:22:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:22:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:22:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 266 transitions. [2024-02-07 14:22:07,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4188976377952756 [2024-02-07 14:22:07,893 INFO L175 Difference]: Start difference. First operand has 114 places, 112 transitions, 753 flow. Second operand 5 states and 266 transitions. [2024-02-07 14:22:07,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 181 transitions, 1560 flow [2024-02-07 14:22:07,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 181 transitions, 1503 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-02-07 14:22:07,910 INFO L231 Difference]: Finished difference. Result has 110 places, 0 transitions, 0 flow [2024-02-07 14:22:07,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=110, PETRI_TRANSITIONS=0} [2024-02-07 14:22:07,911 INFO L281 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2024-02-07 14:22:07,911 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 0 transitions, 0 flow [2024-02-07 14:22:07,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:22:07,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (105 of 106 remaining) [2024-02-07 14:22:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (104 of 106 remaining) [2024-02-07 14:22:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (103 of 106 remaining) [2024-02-07 14:22:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 106 remaining) [2024-02-07 14:22:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 106 remaining) [2024-02-07 14:22:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 106 remaining) [2024-02-07 14:22:07,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 106 remaining) [2024-02-07 14:22:07,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err16ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err17ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err18ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err19ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 106 remaining) [2024-02-07 14:22:07,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err21ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err22ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err20ASSERT_VIOLATIONERROR_FUNCTION (83 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err23ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err24ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err25ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 106 remaining) [2024-02-07 14:22:07,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 106 remaining) [2024-02-07 14:22:07,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 106 remaining) [2024-02-07 14:22:07,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err20ASSERT_VIOLATIONERROR_FUNCTION (57 of 106 remaining) [2024-02-07 14:22:07,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 106 remaining) [2024-02-07 14:22:07,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 106 remaining) [2024-02-07 14:22:07,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err16ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err17ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err18ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 106 remaining) [2024-02-07 14:22:07,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err19ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err21ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err22ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err20ASSERT_VIOLATIONERROR_FUNCTION (29 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err23ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err24ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 106 remaining) [2024-02-07 14:22:07,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 106 remaining) [2024-02-07 14:22:07,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 106 remaining) [2024-02-07 14:22:07,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err20ASSERT_VIOLATIONERROR_FUNCTION (3 of 106 remaining) [2024-02-07 14:22:07,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 106 remaining) [2024-02-07 14:22:07,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 106 remaining) [2024-02-07 14:22:07,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 106 remaining) [2024-02-07 14:22:07,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-02-07 14:22:07,928 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:22:07,933 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:22:07,933 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:22:07,936 INFO L503 ceAbstractionStarter]: Automizer considered 50 witness invariants [2024-02-07 14:22:07,936 INFO L504 ceAbstractionStarter]: WitnessConsidered=50 [2024-02-07 14:22:07,937 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:22:07 BasicIcfg [2024-02-07 14:22:07,937 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:22:07,937 INFO L158 Benchmark]: Toolchain (without parser) took 14422.68ms. Allocated memory was 167.8MB in the beginning and 1.0GB in the end (delta: 874.5MB). Free memory was 103.7MB in the beginning and 825.9MB in the end (delta: -722.2MB). Peak memory consumption was 155.5MB. Max. memory is 16.1GB. [2024-02-07 14:22:07,938 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:22:07,938 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:22:07,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.89ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 103.3MB in the beginning and 190.3MB in the end (delta: -86.9MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2024-02-07 14:22:07,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.34ms. Allocated memory is still 228.6MB. Free memory was 190.3MB in the beginning and 188.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:22:07,938 INFO L158 Benchmark]: Boogie Preprocessor took 52.24ms. Allocated memory is still 228.6MB. Free memory was 188.2MB in the beginning and 185.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-07 14:22:07,939 INFO L158 Benchmark]: RCFGBuilder took 686.19ms. Allocated memory is still 228.6MB. Free memory was 185.0MB in the beginning and 116.8MB in the end (delta: 68.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-02-07 14:22:07,939 INFO L158 Benchmark]: TraceAbstraction took 12891.19ms. Allocated memory was 228.6MB in the beginning and 1.0GB in the end (delta: 813.7MB). Free memory was 115.8MB in the beginning and 825.9MB in the end (delta: -710.1MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2024-02-07 14:22:07,940 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 738.89ms. Allocated memory was 167.8MB in the beginning and 228.6MB in the end (delta: 60.8MB). Free memory was 103.3MB in the beginning and 190.3MB in the end (delta: -86.9MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.34ms. Allocated memory is still 228.6MB. Free memory was 190.3MB in the beginning and 188.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.24ms. Allocated memory is still 228.6MB. Free memory was 188.2MB in the beginning and 185.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 686.19ms. Allocated memory is still 228.6MB. Free memory was 185.0MB in the beginning and 116.8MB in the end (delta: 68.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12891.19ms. Allocated memory was 228.6MB in the beginning and 1.0GB in the end (delta: 813.7MB). Free memory was 115.8MB in the beginning and 825.9MB in the end (delta: -710.1MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 765]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 768]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 769]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 773]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 775]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 776]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 777]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 780]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 792]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 782]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 783]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 794]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 795]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 786]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 787]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 798]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 799]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 802]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 802]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 804]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 805]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 802]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 808]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 809]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 813]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 711]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 712]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 716]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 718]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 719]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 723]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 735]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 725]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 726]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 737]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 738]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 729]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 730]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 741]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 742]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 745]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 745]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 747]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 748]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 745]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 751]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 752]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 756]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 224 locations, 106 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1121 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 992 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3464 IncrementalHoareTripleChecker+Invalid, 3702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 67 mSDtfsCounter, 3464 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1057occurred in iteration=18, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 52 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 14:22:07,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE